Fuzzy Comprehensive Evaluation And Analysis Of The Date Processing Of The Ultrasonic Testing Of The Internal Defects Of Concrete

Judgments of the internal defects of concrete structures, are still to regulate as the standard to test the experience of technicians to determine the main. And some concrete structures are a kind of embedded engineering which is not easily judged. Especially for the secondary concreting, because of high technical requirements and construction process quality are difficult to control, quality problem is easy to appear. beam and column are the main components, bidirectional lateral force system is constituted at junction nodes to resist wind load and earthquake action. So the engineering quality is directly related to the safety of the engineering, it is very important to study frame joint quality on the (two times pouring). secondary concretingThis paper firstly describes the detection methods and judgment methods of internal defects of concrete, which focuses on the concrete pile, commonly used criterion and a variety of criteria shortcomings; and then presents the shortcomings of the criterion, which put forward fuzzy comprehensive evaluation method based on fuzzy mathematics, and establish fuzzy comprehensive evaluation model; Finally, according to the project measured data, the fuzzy comprehensive evaluation method is verified.This paper takes an underground garage project in Lanzhou of Gansu as an example. Aiming at the parameters of the sound velocity, amplitude and frequency parameters in the test results,the paper establishes model of fuzzy comprehensive judge, to apply the fuzzy comprehensive evaluation method in quality evaluation to the concrete columns; then gives a concrete columns of fuzzy comprehensive evaluation of internal defects in the concrete calculation and analysis the process of comprehensive evaluation of the results obtained, and this paper fuzzy comprehensive evaluation method for judging the results obtained with the current evaluation method to compare the results showed that the current evaluation method does not exist an ideal place, but presented in this paper fuzzy comprehensive evaluation method to solve these shortcomings and achieved good results.At the same time, advisory opinions and reinforcement processes are established by mechanical model of haunched beams through the common work characteristics analysis of new and old concrete structure.